Energy Citations Database

Bibliographic Citation

 
Document
For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field.
For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability.
Title Study of temperature-programmed desorption of tert-butylamine to measure the surface acidity of solid catalysts
Creator/Author Aguayo, A.T. ; Arandes, J.M. ; Olazar, M. ; Bilbao, J. (Dept. de Ingenieria Quimica, Univ. del Pais, Vasco. Apartado 655, 48080 Bilbao (ES))
Publication Date1991 Aug 01
OSTI IdentifierOSTI ID: 5677464
Other Number(s)ISSN0888-5885; CODEN: IECRE
Resource TypeJournal Article
Resource RelationIndustrial and Engineering Chemistry Research ; Vol/Issue: 29:8
Subject020400 -- Petroleum-- Processing ;020500 -- Petroleum-- Products & By-Products ;400105 -- Separation Procedures ;400201 -- Chemical & Physicochemical Properties; ALUMINIUM OXIDES-- CATALYTIC EFFECTS;AMINES-- DESORPTION;BUTYL RADICALS-- DESORPTION;CATALYSTS-- TEMPERATURE EFFECTS;HYDROCARBONS-- CATALYTIC CRACKING;SILICON OXIDES-- CATALYTIC EFFECTS; CHEMICAL REACTION KINETICS;GAS CHROMATOGRAPHY;PH VALUE;PHASE STUDIES;SEPARATION PROCESSES;THERMAL GRAVIMETRIC ANALYSIS;ZEOLITES
Related SubjectALKYL RADICALS;ALUMINIUM COMPOUNDS;CHALCOGENIDES;CHEMICAL ANALYSIS;CHEMICAL REACTIONS;CHROMATOGRAPHY;CRACKING;DECOMPOSITION;GRAVIMETRIC ANALYSIS;INORGANIC ION EXCHANGERS;ION EXCHANGE MATERIALS;KINETICS;MATERIALS;MINERALS;ORGANIC COMPOUNDS;OXIDES;OXYGEN COMPOUNDS;PYROLYSIS;QUANTITATIVE CHEMICAL ANALYSIS;RADICALS;REACTION KINETICS;SEPARATION PROCESSES;SILICATE MINERALS;SILICON COMPOUNDS;THERMAL ANALYSIS;THERMOCHEMICAL PROCESSES
Description/Abstract In this paper, the technique of temperature-programmed desorption of tert-butylamine is described to measure the surface acidity of solid catalysts.^The use of this base has advantages over the use of ammonia, pyridine, and n-butylamine.^The desorption measurement is carried out by two methods, gas chromatography and thermogravimetry, and the advised conditions are described for both methods.^Catalysts of SiO{sub 2}/Al{sub 2}O{sub 3}, bifunctionals of Ni-SiO{sub 2}/Al{sub 2}O{sub 3}, and a commercial cracking zeolite have been studied.^A comparison of the desorption results with those of the other acidity measurement techniques (such as titration with n-butylamine in the liquid phase and kinetic measurement of isomerization of n-butenes as the test reaction) allows the acidity measured with tert-butylamine desorption to be classified as strong, corresponding to the active sites in most of the reactions among the hydrocarbon compounds catalyzed by acids.
Country of PublicationUnited States
LanguageEnglish
FormatPages: 1621-1626
System Entry Date2001 May 13

Top